Finding the Fourth Proportional to 757,238.40, 1,135,783.08 and 307,986.12
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Solution
The fourth proportional to 757,238.40, 1,135,783.08 and 307,986.12 is: 461,948.87
Step by Step Solution
- Step 1: Write the proportion equation
757,238.40 : 1,135,783.08 = 307,986.12 : x - Step 2: Convert to fraction form
757,238.40/1,135,783.08 = 307,986.12/x - Step 3: Cross multiply
757,238.40x = 1,135,783.08 × 307,986.12 - Step 4: Simplify right side
757,238.40x = 349,805,423,970.85 - Step 5: Solve for x
x = 349,805,423,970.85/757,238.40 - Step 6: Final answer
x = 461,948.87
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.